Printing-press.



PATENTED JAN. 8, 1907. H.'E. WBSTERVELT.

PRINTING PRESS..

APPLIUATION FILED 0013.30, 1905.

s SHEETS-SHEET 1.

No. 840,885. PATENTED JAN. 8, 1907.

\ H. E. WESTERVELT.

PRINTING PRESS.

APPLICATION FILED 0013.30, 1905.

3 SHEBTSSHEET 2.

PATENTED JAN. 8, 1907.

H. E. WESTERVELT.

PRINTING PRESS.

APPLICATION FILED 001301 1905.

3SHEETS-SHEET 3.

am; ew a @fla'w @15 UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Application filed October 30, 1905. Serial No. 284,964.

Patented Jan. 8, 1907.

To all whom it may concern.-

Be it known that I, HERBERT E. WESTER- VELT, a citizen of the UnitedStates, residing at South Bend, in the State of Indiana, have invented acertain new and useful Improvement in Printing-Presses, of which thefol-- The principal object of the invention is to provide a simple,practical, and efieotive mechanism 'by which an inscriptlon can beprinted upon the side of a paper bag upon which the bottom of the bag isfolded.

In the accompanying drawings I have shown two different forms ofmechanism for accomplishing this'purpose. One is a rotary printing-pressand the other a reciprocating press.

In the drawings, Figure 1 is a plan of a rotary-printing-pressarrangement adapted for printing paper bags in accordance with mypresent invention. Fig. 2 is a section taken on line 2 2 in Fi 1. tionof the mac 'ne. Figs. 4:, 5, and 6 are details of construction. Fig. 7is a side elevation of a reciprocating press having mechanism forprinting on fo ded bags embodying my present invention. Fig. 8 is a planvlew of the same, and Fig. 9 is a etail of construction.

Referring to-the device shown in Figs. 1 to 6, inclusive, I show a frame1, provided with a platform 2 and also with a bracket 3, which sup ortsa table for the paper bagsas they are eing fed to the printingmechanlsm. rotary ba -roll 4 is mounted upon a rotary shaft 5, w ich issupported by the frame 1. This roll is one-half cut away, leaving asolid portion which forms a bed for the paper bag while the same isbeing printed on. A gripping device consisting of a grippin fin'ger 6,having a gripping-j aw 7, is mounte upon the roll 4 and adapted to gripthe top of a paper bag as the latter is advanced alon the guideway 3. Acam 8 is secured to t e frame 1 and constructed with an elevated portion9, adapted to actuate the ripping-finger 6. By this cam the grippingevice is automatically opened and closed. The shaft 5 is also providedwith a pulley 10 and with a gear- Fig. 3 is an end eleva wheel 11. Aprinting-roller 12 is mounted above the bed-roller 4 and supported by ashaft 13, supported by the frame 1. The printing-roller 12 is providedwith printing devices, such as type, which are to print desiredinscriptions upon the paper'bags. The roller 12 is also cut away, sothat it is actually only a semicylinder; in fact, less than that,because more than one-half is cut away, as is'well shown in Fig. 2. Thisadditional cut-away portion is to permit the gripping device 6 tooperate. The shaft 13 is also provided with a gear-wheel 14, whichmeshes with a gear-wheel 11, and isalso provided with a cam 15. A lever16 is pivotally mounted upon the frame at 17 and connected at 18 with ablade 19, having supportingarms 20, provided with pins 21 21. The pins21 21 are arranged to work in slots 22 22, formed in the sides of themachine-frame. A spring 23 is connected at one end to a standard 24 onthe frame and at the other end with the lever 16. Thus as the rotaryshaft 13 rotates the cam 15 is caused to swing the lever' 16 about itspoint of pivotal support, and thereby cause the blade 19 to swingdownwardly and backwardly. As the bags advance they are printed upon bythe typewheel 12. When a bag has advanced sufliciently to bring theforward end of the bagbottom nearly to the ty e, the blade 19 descendsand strikes the ottom behind the rimary cross-fold line, thereby tiltingup the forward end of the bottom and exposing the side of the bag underthe same, which is thereu on printed u on. The bag shown hasaiamond-folded ottom, an end ortion 29 of which projects beyond the en ofthe body portion of the bag. The invention is applicable, however, toany form of bag having a similar construction. The ed es of the cut-awayportions of the gear 1 1 an roller 12 are arranged to come together atthe primary cross-fold line of the bag after the bag-bottom is tiltedup, and thus the bag is printed and the bottom passed between therollers without being creased or crushed, and the bag drops from thepress in its original folded condition.

Referring to the machine shown in Figs. 7 to 9, inclusive, I have showna reciprocating printing-press having a bed 25, carrying the type, and aswinging platen 26 for the bags. The press is provided with fingers 2828, secured to the bed 25 and projecting forwardly and inwardly towardthe middle of the bed.

IIO

" It will be understood that changes and modifications can be madewithout departing from the spirit of my invention; What I claim is- 1.The combination with printing mechanism, of means for tilting the ba-bottom to an upright position across the en of the bagbody, and meansfor feeding the bag to the printing mechanism so that the latter willprint upon the bag-body when the bottom is in its' uprighttiltediposition.

2. The combinatlon with the printing and bed rolls, both-of which arecut away topermit the bag bottom to remain in a tilted upright po'sitlonduring the printing operation, of means for gripping the bag to thebed-roll,

and means for tilting the bag-bottom into an upright tilted position topermit printing upon that portion of the bag-body adjacent to thebag-bottom.

' ceiving and gui 3. The combination with printing and bed or platenrolls, of means for gripping the bags to one of said rolls, a swingingblade for lifting theforward end of the bag-bottom, and means foractuating said swinging blade.

4. The combination with printing and platen rolls, of a gripping devicecarried by the platen-roll, a cam for actuating said gripping device, aivotal lever associated with the printin -roll, acam rotating with theprinting-rel for actuating said lever, aswinging blade havingsupportingarms-pivotal y connected'with saidlever, said arms beingprovided with ing said pins.

5. The combination with means for printing on the side of the bag onwhich the bottom is folded, of means for strikin the bot tom beyond theprimary cross-fol line and thereby tilting the bottom away from the bodyto-expose the latter. In witness whereof I hereunto subscrib my namethis 11th day of October, A- D. 1905-.

Cpins, and guideways for re- HERBERT E. wEsrERv LT. I

Witnesses:

A. MILLER BELEIELD, I. 0. LEE.

